mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-21 10:05:00 +08:00
5db96ef23b
Since commit a9c3f68f3c (tty: Fix low_latency BUG) in 2014,
tty_flip_buffer_push() is only a wrapper to tty_schedule_flip(). All
users were converted in the previous patches, so remove
tty_schedule_flip() completely while inlining its body into
tty_flip_buffer_push().
One less exported function.
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211122111648.30379-4-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_TTY_FLIP_H
|
|
#define _LINUX_TTY_FLIP_H
|
|
|
|
#include <linux/tty_buffer.h>
|
|
#include <linux/tty_port.h>
|
|
|
|
struct tty_ldisc;
|
|
|
|
int tty_buffer_set_limit(struct tty_port *port, int limit);
|
|
unsigned int tty_buffer_space_avail(struct tty_port *port);
|
|
int tty_buffer_request_room(struct tty_port *port, size_t size);
|
|
int tty_insert_flip_string_flags(struct tty_port *port,
|
|
const unsigned char *chars, const char *flags, size_t size);
|
|
int tty_insert_flip_string_fixed_flag(struct tty_port *port,
|
|
const unsigned char *chars, char flag, size_t size);
|
|
int tty_prepare_flip_string(struct tty_port *port, unsigned char **chars,
|
|
size_t size);
|
|
void tty_flip_buffer_push(struct tty_port *port);
|
|
int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
|
|
|
|
static inline int tty_insert_flip_char(struct tty_port *port,
|
|
unsigned char ch, char flag)
|
|
{
|
|
struct tty_buffer *tb = port->buf.tail;
|
|
int change;
|
|
|
|
change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL);
|
|
if (!change && tb->used < tb->size) {
|
|
if (~tb->flags & TTYB_NORMAL)
|
|
*flag_buf_ptr(tb, tb->used) = flag;
|
|
*char_buf_ptr(tb, tb->used++) = ch;
|
|
return 1;
|
|
}
|
|
return __tty_insert_flip_char(port, ch, flag);
|
|
}
|
|
|
|
static inline int tty_insert_flip_string(struct tty_port *port,
|
|
const unsigned char *chars, size_t size)
|
|
{
|
|
return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
|
|
}
|
|
|
|
int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
|
|
const char *f, int count);
|
|
|
|
void tty_buffer_lock_exclusive(struct tty_port *port);
|
|
void tty_buffer_unlock_exclusive(struct tty_port *port);
|
|
|
|
#endif /* _LINUX_TTY_FLIP_H */
|